Sash-lock.



Patented Nov. 27. I900.

s. c. MARTIN.

SASH LUCK.

eApplication filed Feb. 27, 1900.)

ORNEY INVENTOR. "AMUFI. @HARTIN (H o M o d 0! Vl/lI/l/III/l/IAY/I/III/IIIIII/IIJWIIIIIIIIIIIIIIImI/IIIIM ATT SAMUEL C. MARTIN, OF BELLEVILLE, NEW JERSEY.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 662,571, dated November 27, 1900.

Application filed February 27,1900. Serial No. 6,683. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL O. MARTIN, a citizen of the United States, residing at Belleville, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Sash Looks or Fasteners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap; ert-ains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to sash-fasteners; and the invention is designed to provide a sash-fastening which cannot be operated from the outside, so as to unlock the window, by the insertion of a knife-blade or other means ordinarily used between the meeting-rails of the upper and lower window-sashes.

A further object of this invention is to provide a simple and operative construction of sash lock or fastener in which the several parts are readily adjusted to the varying positions of the meetingrails, especially when applied to the window-sashes in old buildings or where the frames have become Warped or shrunken, the arrangement and construction of the various parts of the look or fastener being so simple that the locking lever or bolt is readily manipulated to lock and unlock the meeting-rails of the sashes and when locked prevents the rattling of the same.

A still further object of my invention is to provide in connection with a rotating locking lever or bolt, which is preferably spring-actuated, so as to be capable of self-adjustment to the varying levels of the oppositely-placed surfaces of the meeting-rails, a lock-nut or similar means to be firmly screwed down upon the top of said locking lever or bolt when in its locked or holding position to prevent further rotatable motion of said lever or bolt, and thereby securely retaining the windowsashes in their closed and locked positions to prevent their being opened from the outside.

Myinvention therefore consists in thenovel construction of sash lock or fastener hereinafter fully set forth and also in the several novel arrangements and combinations of the Various parts, as well as in the details of the construction thereof, all of which will be described in the following specification and thenfinally embodied in the clauses of the claim, which form a part of this specification.

The invention is clearly illustrated in the accompanying drawings, in which- Figure l is a plan view of portions of the meeting-rails of a sash and my novel construction of sash lock or fastener in its locked position secured thereto. Fig. 2 is a similar View of the said parts, but the locking lever or bolt being represented in its unlocked or disengaged position to permit the raising or lowering of the window-sashes. Fig. 3 is a side view of the sash lock or fastener and a vertical cross-section of the meeting-rails,take11on line 3 3 in Fig. l, the sash lock or fastener being represented in its locked position. Fig. lisa vertical cross-section of the the meeting-rails and the sash lock or fastener, said section being taken on line at 4 in said Fig. l; and Fig. 5 is a face View of the meeting-rail of the upper window-sash and the parts of the sash lock or fastener secured thereto represented in their unlocked positions. Fig. 6 is a plan view of portions of the meeting-rails ofa sash, one of said rails being provided with a lock plate or shoe of a slightly-modified construction. to permit the use of the sash lock or fastener with window-sashes the meeting rails of which do not meet properly. is a vertical cross-section of a pair of meeting-rails which are out of alinement with a sectional representation of the sash lock or fastener and the lock plate or shoe illustrated in said Fig. 6, with the locking lever or bolt in that position about to be pressed into a recess or cut-away part in the lockplate or shoe and the lock-nut and an arm connected therewith by a complete turn then being brought into its holding or locked engagement with the locking lever or bolt.

Similar letters of reference are employed in all of the said above-described views to indicate corresponding parts.

In said drawings, b indicates the meeting rail of the upper window-sash, and b the meeting-rail of the lower window-sash.

As will be seen from the several figures of the drawings, I have secured, by means of screws ct or in any other suitable manner in'a countersunk portion b of the meetingrail b, so as to be fiush with the face 19 and the upper edge b of the rail, as illustrated more particularly in Fig. 5, a plate or body portion Ct,.WhiGh is preferably provided at and near its upper edge with a forwardly-extending enlargement or protuberance a as and for the purposes hereinafter more fully set forth, Formed integral with the upper edge of said plate or body portion a and extending rearwardly from the upper edge of said enlargement and having the lower surface of its closed end a resting directly upon the upper surface of the meeting-rail b is a cylindrical portion or extension a which is chambered, as at a Within the chamber of said cylindrical portion or extension a is a centrally-arranged post at, having its upper end extending above the upper edge of the said body portion or extension a and provided with a screw-thread a The locking lever or bolt of the sash lock or fastener consists, essentially, of a main body 0, which is suitably enlarged at its sides, as at c, and has a cylindrical chamber 0 In the upper and closed top 0 is a hole or opening 0 for loosely and rotatively fitting said main body 0 upon the post a, above mentioned. The chamber 0 of said body 0 is also loosely and rotatively fitted upon the cylindrical portion or extension a of the body a, said body 0 of the locking lever or bolt thus being capable of a rotary motion, as well as a vertical movement of. adjustment against the lower edge of a screw nut or collar 61 on the screw end a of the post a, a coiled spring 6 being placed in the chambered portions a and c and encircling the post a to cause a constant upward or vertical movement of the main'body portion 0 of the locking lever or bolt against said nut or scre w-collar d, as will be clearly evident, and which may have a stop-cap d of an ornamental finish. Extending from one side of said body portion a of the locking lever or bolt is the bolt portion proper, (indicated by the reference-letter 0 which is preferably provided at or near its free end with a downwardly-extending projection 0, having an undercut portion a for holding and lockingengagement with the chamfered edge f of a curved lock plate or shoef, which is secured upon the upper surface of the rail 1) by means of screws f or in any other suitable manner. Thearrangementofthecurved edge f of said plate f is such that said undercut portion 0 of said projection 0 will enter freely upon the chamfered edge f at the ends f of said edge f, but at or near the 1niddle f will bind very firmly, and will thereby cause the two meeting-rails b and b to be drawn toward each other, with the inner edge of the railb' pressed in close contact with the enlargement or protuberance a of the plate a on the rail b. Said enlargement or protuberance 1/ being usually made of a greater width than the width of the bolt portion 0 it will be clearly evident that should a knifeblade or other instrument be inserted between the meeting-rails to push the bolt portion 0 to one side the edge of said enlargement or protuberance will serve as a stop and prevent the forcible contact of the knife-blade or tool sidewise and against the bolt portion 0, and thereby overcomes the possibility of its being opened from the outside. Said enlargement or protuberance a also serves the purpose of a guide to the upward movement of the lower window-sash when the sash-lock is unlocked and when the sash is being raised by forcing the meeting-rail b in a slightly-forward direction, thereby preventing the edge of the rail coming in contact with any of the parts of the lock or fastener on the rail b to prevent the distortion of the working parts of the lock or the marring of the rail-section b.

The lock nut or screw 01, hereinabove men tioned, for closing and locking lever or bolt in its holding or locked relation with the lock plate or shoe fagainst the action of the spring 6 may have extending therefrom at one side an arm d, preferably provided with a downwardly-extending stud or finger 61 which is forced into direct and holding engagement with the surface 0 of a slot 0 in the bolt portion 0 and thereby retains said bolt portion 0 rigidly in place against any upward force, either from the lower sash in endeavoring to raise it from the'outside or from a tool forced between the meeting-rails. The main body portion 0 of said locking lever or bolt may also be provided with a reaiWvardly-exten ding projection or enlargement 0 having a comparatively large and fiat under surface o which when the parts are in their locked or holding positions, as indicated in Figs. 3 and 4', bears directly upon the upper surface of the meeting-rail b and prevents any distortion of the parts by forcible upward pressure against the bolt portion 0 From the above description of the various parts of my novel construction of sash lock or fastener it will be seen that I have devised a simple and operative device which can be readily secured in position, the locking lever or bolt being capable of automatic adjustment, so as to adapt the fastener to a pair of meeting-rails, one of which may be higher than the other, and, furthermore, providing a locking device or fastener which cannot be tampered With from the outside.

My novel construction of sash lock or fastener mayalso be used on the meeting-rails of window-sashes where the rails are out of alinement, either laterally or vertically, or both, as indicated in Figs. 6 and 7. In this instance, where the meeting-rails are separated, so as to have a considerable space between them, the holding plate or shoe f is preferably made with a recessed or cut-away partf, into which the bolt part f as indicated in Fig. 7, is pressed by the operator against the tension of the spring 6, and is held therein in its locked position against any possible rotation laterally when the nut or screwcollar (1 on the post a is screwed down upon the top of the body portion 0, as will be clearly understood from an inspection of said Fig. 7.

Having thus described my invention, what I claim is- 1. In a sash lock or fastener, the combination, with a lock plate or shoe, of a spring-actuated locking lever or bolt having a vertically-adjustable movement and arranged and constructed to engage said lock plate or shoe, a lock nut or sleeve connected with said locking-lever, and an arm extending from one side of said nut or sleeve adapted to engage with said locking lever or bolt for retaining it in its locked or holding relation with said lock plate or shoe, substantially as and for the purposes set forth.

2. In a sash lock or fastener, the combination, with a lock plate or shoe, of a rotatable locking lever or bolt arranged and constructed to engage said lock plate or shoe, a screwthreaded post on which said locking lever or bolt is rotatably arranged, a lock nut or sleeve on said post, and an arm connected with said nut or sleeve adapted to engage said locking lever or bolt for retaining it in its locked or holding relation with said lock plate or shoe, substantially as and for the purposes set forth.

3. In a sash lock or fastener, the combination,with a look plate or shoe, of a body-plate, a chambered cylindrical portion or extension on said plate, a locking lever or bolt having a chambered portion fitted over said cylindrical portion or extension on said plate, a

: spring Within said chambered portions, said locking lever or bolt having a rotary movement on said cylindrical portion or extension of said body-plate, a lock nut or sleeve connected with said locking-lever, and an arm extending from one side of said nut or sleeve adapted to engage with said locking lever or bolt for retaining it in its locked or holding relation with said lock plate or shoe, substantially as and for the purposes set forth.

4. In a sash lock or fastener, the combination,with a lock plate or shoe, of a body-plate, a chambered cylindrical portion or extension on said plate, an upwardly-extending sorewthreaded post in said chambered portion or extension, a locking lever or bolt rotatably arranged on said post, said locking lever or bolt having a chambered portion fitted over said cylindrical portion or extension on said body-plate, a spring in said chambered portions encircling said post, and a lock nut or sleeve on said post for retaining said locking lever or bolt in its locked or holding relation with said lock plate or shoe, substantially as and for the purposes set forth.

5. In a sash lock or fastener, the combination, with a lock plate or shoe, of a body-plate, a chambered cylindrical portion or extension on said plate, an upwardly-extending screwt-hreaded post in said chambered portion or extension, a locking lever or bolt rotatably arranged on said post, said locking lever or bolt having a chambered portion fitted over said cylindrical portion or extension on said body-plate, a spring in said chambered portions encircling said post, a lock nut or sleeve on said post, and an arm connected with said nut or sleeve adapted to engage said locking lever or bolt for retaining it in its locked or holding relation with said lock plate or shoe, substantially as and for the purposes set forth.

In testimony that I claim the invention set forth above I have hereunto set my hand this 23d day of February, 1900.

SAMUEL O. MARTIN.

Witnesses:

FREDK. C. FRAENTZEL, GEO. D. RICHARDS. 

